diff --git a/ApplicationCode/ReservoirDataModel/RigNNCData.cpp b/ApplicationCode/ReservoirDataModel/RigNNCData.cpp
index 30806c1587..089fc32e9b 100644
--- a/ApplicationCode/ReservoirDataModel/RigNNCData.cpp
+++ b/ApplicationCode/ReservoirDataModel/RigNNCData.cpp
@@ -80,7 +80,7 @@ void RigNNCData::processConnections(const RigMainGrid& mainGrid)
                 //m_cellIdxToFaceToConnectionIdxMap[m_connections[cnIdx].m_c1GlobIdx][cvf::StructGridInterface::NO_FACE].push_back(cnIdx);
                 //m_cellIdxToFaceToConnectionIdxMap[m_connections[cnIdx].m_c2GlobIdx][cvf::StructGridInterface::NO_FACE].push_back(cnIdx);
 
-                cvf::Trace::show("NNC: No direct neighbors : C1: " + cvf::String((int)m_connections[cnIdx].m_c1GlobIdx) + "C2: " + cvf::String((int)m_connections[cnIdx].m_c2GlobIdx));
+                cvf::Trace::show("NNC: No direct neighbors : C1: " + cvf::String((int)m_connections[cnIdx].m_c1GlobIdx) + " C2: " + cvf::String((int)m_connections[cnIdx].m_c2GlobIdx));
                 continue; // to next connection
             }
         }